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Graft Copolymerization of Styrene and Acrylonitrile in the Presence of Polypropylene Glycol: Modeling and Simulation of Semi-batch and Continuous Processes.
Graft Copolymerization of Styrene and Acrylonitrile in the Presence of Polypropylene Glycol: Modeling and Simulation of Semi-batch and Continuous Processes.
An existing kinetic model for graft free-radical copolymerization of styrene (St) and acrylonitrile(AN) in the presence of poly(propylene glycol) is extended to describe the semi-batchprocess and to simulate the continuous process. A good predictive ability of the model for thesemi-batch process is demonstrated by comparingwith experimental data, except for Mw and polydispersityindex at St/AN?60/40 wt% in thefeed. The continuous process is simulated under
various reaction conditions. The solid contentincreases sharply with increasing monomer concentration.With decreasing St/AN weight ratio,the graft efficieny increases sharply and Mwdecreases.
